Add dGPU hot-plug/power-setting support
This commit is contained in:
qzed
parent
002a33b6f0
commit
2009a8d721
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@ -1,7 +1,7 @@
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From e9f55e5da497d27e0908cbffd3ecd0e8f1369ddb Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:43:58 +0200
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Subject: [PATCH 01/11] surface-acpi
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Subject: [PATCH 01/12] surface-acpi
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---
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drivers/acpi/acpica/dsopcode.c | 2 +-
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@ -1,7 +1,7 @@
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From e851005607738247775e43e9ac4336edd4c09516 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:45:42 +0200
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Subject: [PATCH 02/11] suspend
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Subject: [PATCH 02/12] suspend
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---
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drivers/nvme/host/nvme.h | 5 +++++
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@ -1,7 +1,7 @@
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From ba453a89148ea2289e71741225273a02ae2db768 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:49:56 +0200
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Subject: [PATCH 03/11] buttons
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Subject: [PATCH 03/12] buttons
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---
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drivers/input/misc/soc_button_array.c | 145 ++++++++++++++++++++--
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@ -1,7 +1,7 @@
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From 4f79924d2848c13e9a0830c0c575421768f8d58a Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:50:29 +0200
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Subject: [PATCH 04/11] cameras
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Subject: [PATCH 04/12] cameras
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---
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drivers/media/usb/uvc/uvc_driver.c | 40 +
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@ -1,7 +1,7 @@
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From aa2ce90ff8ee8ad90a5e84004b748e709167bd0f Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:50:47 +0200
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Subject: [PATCH 05/11] ipts
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Subject: [PATCH 05/12] ipts
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---
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drivers/gpu/drm/i915/Makefile | 3 +
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@ -1,7 +1,7 @@
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From 3895e7b026d525d70fdc0f4a6dd59b08c9f44022 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:51:26 +0200
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Subject: [PATCH 06/11] hid
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Subject: [PATCH 06/12] hid
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---
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drivers/hid/hid-ids.h | 21 +++++++++----
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@ -1,7 +1,7 @@
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From 4cbc99c208e1938349aec603aee10b202a54f54a Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:51:55 +0200
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Subject: [PATCH 07/11] sdcard-reader
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Subject: [PATCH 07/12] sdcard-reader
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---
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drivers/usb/core/hub.c | 3 ++-
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@ -1,7 +1,7 @@
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From 52cb41ede0999511587b9a2523771238c12f8033 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:52:12 +0200
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Subject: [PATCH 08/11] wifi
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Subject: [PATCH 08/12] wifi
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---
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drivers/net/wireless/marvell/mwifiex/11n_aggr.c | 3 +--
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@ -1,7 +1,7 @@
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From 09ddddeb396321184eb2591c20e681d48623c34d Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:52:29 +0200
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Subject: [PATCH 09/11] surface3-power
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Subject: [PATCH 09/12] surface3-power
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---
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drivers/platform/x86/Kconfig | 7 +
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@ -1,7 +1,7 @@
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From d27de602a55f146e79c125287e6dbc3aa70ded38 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:52:52 +0200
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Subject: [PATCH 10/11] mwlwifi
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Subject: [PATCH 10/12] mwlwifi
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---
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drivers/net/wireless/marvell/Kconfig | 1 +
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@ -1,7 +1,7 @@
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From 4b31faa2ddaffa6e6963c54ff6574178de94918e Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:53:15 +0200
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Subject: [PATCH 11/11] surface-lte
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Subject: [PATCH 11/12] surface-lte
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---
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drivers/usb/serial/qcserial.c | 1 +
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359
patches/4.19/0012-surfacebook2-dgpu.patch
Normal file
359
patches/4.19/0012-surfacebook2-dgpu.patch
Normal file
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@ -0,0 +1,359 @@
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From c7eb71b21227f0ee6b46a13c9b4f9df49dd23979 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 2 Jul 2019 23:58:22 +0200
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Subject: [PATCH 12/12] surfacebook2-dgpu
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---
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drivers/platform/x86/Kconfig | 9 +
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drivers/platform/x86/Makefile | 1 +
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drivers/platform/x86/surfacebook2_dgpu_hps.c | 306 +++++++++++++++++++
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3 files changed, 316 insertions(+)
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create mode 100644 drivers/platform/x86/surfacebook2_dgpu_hps.c
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diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
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index d6695d8fc795..16f40109337c 100644
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--- a/drivers/platform/x86/Kconfig
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+++ b/drivers/platform/x86/Kconfig
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@@ -436,6 +436,15 @@ config SURFACE3_WMI
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To compile this driver as a module, choose M here: the module will
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be called surface3-wmi.
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+config SURFACE_BOOK2_DGPU_HPS
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+ tristate "Surface Book 2 dGPU Hot-Plug System Driver"
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+ depends on ACPI
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+ ---help---
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+ This is an experimetnal driver to control the power-state of the
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+ Surface Book 2 dGPU.
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+
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+ If you have a Surface Book 2, say Y or M here.
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+
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config THINKPAD_ACPI
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tristate "ThinkPad ACPI Laptop Extras"
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depends on ACPI
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diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
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index dd045ccf3a90..6d24ede71496 100644
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--- a/drivers/platform/x86/Makefile
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+++ b/drivers/platform/x86/Makefile
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@@ -45,6 +45,7 @@ obj-$(CONFIG_ACPI_WMI) += wmi.o
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obj-$(CONFIG_MSI_WMI) += msi-wmi.o
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obj-$(CONFIG_PEAQ_WMI) += peaq-wmi.o
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obj-$(CONFIG_SURFACE3_WMI) += surface3-wmi.o
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+obj-$(CONFIG_SURFACE_BOOK2_DGPU_HPS) += surfacebook2_dgpu_hps.o
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obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
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obj-$(CONFIG_WMI_BMOF) += wmi-bmof.o
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obj-$(CONFIG_INTEL_WMI_THUNDERBOLT) += intel-wmi-thunderbolt.o
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diff --git a/drivers/platform/x86/surfacebook2_dgpu_hps.c b/drivers/platform/x86/surfacebook2_dgpu_hps.c
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new file mode 100644
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index 000000000000..7639fb0029d8
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--- /dev/null
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+++ b/drivers/platform/x86/surfacebook2_dgpu_hps.c
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@@ -0,0 +1,306 @@
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+#include <linux/acpi.h>
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+#include <linux/gpio.h>
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/moduleparam.h>
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+#include <linux/platform_device.h>
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+#include <linux/sysfs.h>
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+
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+#include <linux/uaccess.h>
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+
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+
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+#define SB2_SHPS_DSM_REVISION 1
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+#define SB2_SHPS_DSM_GPU_STATE 0x05
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+
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+static const guid_t SB2_SHPS_DSM_UUID =
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+ GUID_INIT(0x5515a847, 0xed55, 0x4b27, 0x83, 0x52, 0xcd,
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+ 0x32, 0x0e, 0x10, 0x36, 0x0a);
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+
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+#define SB2_PARAM_PERM (S_IRUGO | S_IWUSR)
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+
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+
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+static const struct acpi_gpio_params gpio_base_presence_int = { 0, 0, false };
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+static const struct acpi_gpio_params gpio_base_presence = { 1, 0, false };
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+static const struct acpi_gpio_params gpio_dgpu_power_int = { 2, 0, false };
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+static const struct acpi_gpio_params gpio_dgpu_power = { 3, 0, false };
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+static const struct acpi_gpio_params gpio_dgpu_presence_int = { 4, 0, false };
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+static const struct acpi_gpio_params gpio_dgpu_presence = { 5, 0, false };
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+
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+static const struct acpi_gpio_mapping sb2_mshw0153_acpi_gpios[] = {
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+ { "base_presence-int-gpio", &gpio_base_presence_int, 1 },
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+ { "base_presence-gpio", &gpio_base_presence, 1 },
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+ { "dgpu_power-int-gpio", &gpio_dgpu_power_int, 1 },
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+ { "dgpu_power-gpio", &gpio_dgpu_power, 1 },
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+ { "dgpu_presence-int-gpio", &gpio_dgpu_presence_int, 1 },
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+ { "dgpu_presence-gpio", &gpio_dgpu_presence, 1 },
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+ { },
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+};
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+
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+
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+enum sb2_dgpu_power {
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+ SB2_DGPU_POWER_OFF = 0,
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+ SB2_DGPU_POWER_ON = 1,
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+
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+ __SB2_DGPU_POWER__START = 0,
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+ __SB2_DGPU_POWER__END = 1,
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+};
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+
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+enum sb2_param_dgpu_power {
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+ SB2_PARAM_DGPU_POWER_OFF = SB2_DGPU_POWER_OFF,
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+ SB2_PARAM_DGPU_POWER_ON = SB2_DGPU_POWER_ON,
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+ SB2_PARAM_DGPU_POWER_AS_IS = 2,
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+
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+ __SB2_PARAM_DGPU_POWER__START = 0,
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+ __SB2_PARAM_DGPU_POWER__END = 2,
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+};
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+
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+static const char* sb2_dgpu_power_str(enum sb2_dgpu_power power) {
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+ if (power == SB2_DGPU_POWER_OFF) {
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+ return "off";
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+ } else if (power == SB2_DGPU_POWER_ON) {
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+ return "on";
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+ } else {
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+ return "<invalid>";
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+ }
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+}
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+
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+
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+struct sb2_shps_driver_data {
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+ struct mutex dgpu_power_lock;
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+ enum sb2_dgpu_power dgpu_power;
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+};
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+
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+
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+static int __sb2_shps_dgpu_set_power(struct platform_device *pdev, enum sb2_dgpu_power power)
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+{
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+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
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+ acpi_handle handle = ACPI_HANDLE(&pdev->dev);
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+ union acpi_object *result;
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+ union acpi_object param;
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+
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+ param.type = ACPI_TYPE_INTEGER;
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+ param.integer.value = power == SB2_DGPU_POWER_ON;
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+
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+ result = acpi_evaluate_dsm_typed(handle, &SB2_SHPS_DSM_UUID, SB2_SHPS_DSM_REVISION,
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+ SB2_SHPS_DSM_GPU_STATE, ¶m, ACPI_TYPE_BUFFER);
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+
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+ if (IS_ERR_OR_NULL(result)) {
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+ return result ? PTR_ERR(result) : -EFAULT;
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+ }
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+
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+ if (result->buffer.length != 1 || result->buffer.pointer[0] != 0) {
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+ return -EIO;
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+ }
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+
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+ drvdata->dgpu_power = power;
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+
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+ printk(KERN_INFO "sb2_shps: dGPU power state set to \'%s\'\n", sb2_dgpu_power_str(power));
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+
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+ ACPI_FREE(result);
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+ return 0;
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+}
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+
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+static int sb2_shps_dgpu_set_power(struct platform_device *pdev, enum sb2_dgpu_power power)
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+{
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+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
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+ int status = 0;
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+
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+ if (power < __SB2_DGPU_POWER__START || power > __SB2_DGPU_POWER__END) {
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+ return -EINVAL;
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+ }
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+
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+ mutex_lock(&drvdata->dgpu_power_lock);
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+ if (power != drvdata->dgpu_power) {
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+ status = __sb2_shps_dgpu_set_power(pdev, power);
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+ }
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+ mutex_unlock(&drvdata->dgpu_power_lock);
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+
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+ return status;
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+}
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+
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+static int sb2_shps_dgpu_force_power(struct platform_device *pdev, enum sb2_dgpu_power power)
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+{
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+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
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+ int status;
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+
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+ if (power < __SB2_DGPU_POWER__START || power > __SB2_DGPU_POWER__END) {
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+ return -EINVAL;
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+ }
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+
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+ mutex_lock(&drvdata->dgpu_power_lock);
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+ status = __sb2_shps_dgpu_set_power(pdev, power);
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+ mutex_unlock(&drvdata->dgpu_power_lock);
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+
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+ return status;
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+}
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+
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+
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+static int param_dgpu_power_set(const char *val, const struct kernel_param *kp)
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+{
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+ int power = SB2_PARAM_DGPU_POWER_OFF;
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+ int status;
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+
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+ status = kstrtoint(val, 0, &power);
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+ if (status) {
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+ return status;
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+ }
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+
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+ if (power < __SB2_PARAM_DGPU_POWER__START || power > __SB2_PARAM_DGPU_POWER__END) {
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+ return -EINVAL;
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+ }
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+
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+ return param_set_int(val, kp);
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+}
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+
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+static const struct kernel_param_ops param_dgpu_power_ops = {
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+ .set = param_dgpu_power_set,
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+ .get = param_get_int,
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+};
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+
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+static int param_dgpu_power_init = SB2_PARAM_DGPU_POWER_OFF;
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+static int param_dgpu_power_exit = SB2_PARAM_DGPU_POWER_OFF;
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+
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+module_param_cb(dgpu_power_init, ¶m_dgpu_power_ops, ¶m_dgpu_power_init, SB2_PARAM_PERM);
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+module_param_cb(dgpu_power_exit, ¶m_dgpu_power_ops, ¶m_dgpu_power_exit, SB2_PARAM_PERM);
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+
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+MODULE_PARM_DESC(dgpu_power_init, "dGPU power state to be set on init (0: off / 1: on / 2: as-is)");
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+MODULE_PARM_DESC(dgpu_power_exit, "dGPU power state to be set on exit (0: off / 1: on / 2: as-is)");
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+
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+
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+static ssize_t dgpu_power_show(struct device *dev, struct device_attribute *attr, char *data)
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+{
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+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
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+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
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+
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+ return sprintf(data, "%s\n", sb2_dgpu_power_str(drvdata->dgpu_power));
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+}
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+
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+static ssize_t dgpu_power_store(struct device *dev, struct device_attribute *attr,
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+ const char *data, size_t count)
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+{
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+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
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+ bool power = false;
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+ int status;
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+
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+ status = kstrtobool(data, &power);
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+ if (status) {
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+ return status;
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+ }
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+
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+ if (power) {
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+ status = sb2_shps_dgpu_set_power(pdev, SB2_DGPU_POWER_ON);
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+ } else {
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+ status = sb2_shps_dgpu_set_power(pdev, SB2_DGPU_POWER_OFF);
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+ }
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+
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+ return status < 0 ? status : count;
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+}
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+
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+const static DEVICE_ATTR_RW(dgpu_power);
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+
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+
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+#ifdef CONFIG_PM
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+
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+static int sb2_shps_resume(struct device *dev)
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+{
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+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
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+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
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+
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+ return sb2_shps_dgpu_force_power(pdev, drvdata->dgpu_power);
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+}
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+
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+static SIMPLE_DEV_PM_OPS(sb2_shps_pm_ops, NULL, sb2_shps_resume);
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+
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+#endif
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+
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+
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+static int sb2_shps_probe(struct platform_device *pdev)
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+{
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+ struct sb2_shps_driver_data *drvdata;
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+ struct acpi_device *shps_dev = ACPI_COMPANION(&pdev->dev);
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+ int status = 0;
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+
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+ if (gpiod_count(&pdev->dev, NULL) < 0) {
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+ return -ENODEV;
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+ }
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+
|
||||
+ status = acpi_dev_add_driver_gpios(shps_dev, sb2_mshw0153_acpi_gpios);
|
||||
+ if (status) {
|
||||
+ return status;
|
||||
+ }
|
||||
+
|
||||
+ drvdata = kzalloc(sizeof(struct sb2_shps_driver_data), GFP_KERNEL);
|
||||
+ if (!drvdata) {
|
||||
+ status = -ENOMEM;
|
||||
+ goto err_alloc_drvdata;
|
||||
+ }
|
||||
+
|
||||
+ mutex_init(&drvdata->dgpu_power_lock);
|
||||
+ drvdata->dgpu_power = SB2_DGPU_POWER_OFF;
|
||||
+ platform_set_drvdata(pdev, drvdata);
|
||||
+
|
||||
+ if (param_dgpu_power_init != SB2_PARAM_DGPU_POWER_AS_IS) {
|
||||
+ status = sb2_shps_dgpu_force_power(pdev, param_dgpu_power_init);
|
||||
+ if (status) {
|
||||
+ goto err_set_power;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ status = sysfs_create_file(&pdev->dev.kobj, &dev_attr_dgpu_power.attr);
|
||||
+ if (status) {
|
||||
+ goto err_sysfs;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+err_sysfs:
|
||||
+ sb2_shps_dgpu_force_power(pdev, SB2_DGPU_POWER_OFF);
|
||||
+err_set_power:
|
||||
+ platform_set_drvdata(pdev, NULL);
|
||||
+ kfree(drvdata);
|
||||
+err_alloc_drvdata:
|
||||
+ acpi_dev_remove_driver_gpios(shps_dev);
|
||||
+ return status;
|
||||
+}
|
||||
+
|
||||
+static int sb2_shps_remove(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+ struct acpi_device *shps_dev = ACPI_COMPANION(&pdev->dev);
|
||||
+
|
||||
+ sysfs_remove_file(&pdev->dev.kobj, &dev_attr_dgpu_power.attr);
|
||||
+
|
||||
+ if (param_dgpu_power_exit != SB2_PARAM_DGPU_POWER_AS_IS) {
|
||||
+ sb2_shps_dgpu_set_power(pdev, param_dgpu_power_exit);
|
||||
+ }
|
||||
+ acpi_dev_remove_driver_gpios(shps_dev);
|
||||
+
|
||||
+ platform_set_drvdata(pdev, NULL);
|
||||
+ kfree(drvdata);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static const struct acpi_device_id sb2_shps_acpi_match[] = {
|
||||
+ { "MSHW0153", 0 },
|
||||
+ { },
|
||||
+};
|
||||
+MODULE_DEVICE_TABLE(acpi, sb2_shps_acpi_match);
|
||||
+
|
||||
+static struct platform_driver sb2_shps_driver = {
|
||||
+ .probe = sb2_shps_probe,
|
||||
+ .remove = sb2_shps_remove,
|
||||
+ .driver = {
|
||||
+ .name = "sb2_shps",
|
||||
+ .acpi_match_table = ACPI_PTR(sb2_shps_acpi_match),
|
||||
+#ifdef CONFIG_PM
|
||||
+ .pm = &sb2_shps_pm_ops,
|
||||
+#endif
|
||||
+ },
|
||||
+};
|
||||
+module_platform_driver(sb2_shps_driver);
|
||||
+
|
||||
+MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
|
||||
+MODULE_DESCRIPTION("Surface Book 2 Hot-Plug System Driver");
|
||||
+MODULE_LICENSE("GPL v2");
|
||||
--
|
||||
2.22.0
|
||||
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
From d4d2fa3647f86b84ed6d38c8180cb020eb88627d Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:22:49 +0200
|
||||
Subject: [PATCH 01/11] surface-acpi
|
||||
Subject: [PATCH 01/12] surface-acpi
|
||||
|
||||
---
|
||||
drivers/acpi/acpica/dsopcode.c | 2 +-
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From c2ae9c80d630190f67b102303f794277cd916d9f Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:24:31 +0200
|
||||
Subject: [PATCH 02/11] suspend
|
||||
Subject: [PATCH 02/12] suspend
|
||||
|
||||
---
|
||||
drivers/nvme/host/nvme.h | 5 +++++
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From 8b583fd83792f28f23461186b0c44d9c1554204e Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:25:27 +0200
|
||||
Subject: [PATCH 03/11] buttons
|
||||
Subject: [PATCH 03/12] buttons
|
||||
|
||||
---
|
||||
drivers/input/misc/soc_button_array.c | 145 ++++++++++++++++++++--
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From ee99ccaced33d4db9d807b5452507c2b4257f595 Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:27:27 +0200
|
||||
Subject: [PATCH 04/11] cameras
|
||||
Subject: [PATCH 04/12] cameras
|
||||
|
||||
---
|
||||
drivers/media/usb/uvc/uvc_driver.c | 40 +
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From fa6be7e31d29959edc738986507fed1e1a877e2e Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:28:10 +0200
|
||||
Subject: [PATCH 05/11] ipts
|
||||
Subject: [PATCH 05/12] ipts
|
||||
|
||||
---
|
||||
drivers/gpu/drm/i915/Makefile | 3 +
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From d784fa6928c75c033a240d6db839c3aacd9edd33 Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:28:41 +0200
|
||||
Subject: [PATCH 06/11] hid
|
||||
Subject: [PATCH 06/12] hid
|
||||
|
||||
---
|
||||
drivers/hid/hid-ids.h | 21 +++++++++----
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From 1b434e8d2943d1c6a3fb9eb7936f8ecc5c1551e3 Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:29:19 +0200
|
||||
Subject: [PATCH 07/11] sdcard-reader
|
||||
Subject: [PATCH 07/12] sdcard-reader
|
||||
|
||||
---
|
||||
drivers/usb/core/hub.c | 3 ++-
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From 8f2bb111745b57988030776899049153dadf2e3d Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:30:18 +0200
|
||||
Subject: [PATCH 08/11] wifi
|
||||
Subject: [PATCH 08/12] wifi
|
||||
|
||||
---
|
||||
drivers/net/wireless/marvell/mwifiex/11n_aggr.c | 3 +--
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From facb57708454c1424e5dffe2be999356fc88984a Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:30:44 +0200
|
||||
Subject: [PATCH 09/11] surface3-power
|
||||
Subject: [PATCH 09/12] surface3-power
|
||||
|
||||
---
|
||||
drivers/platform/x86/Kconfig | 7 +
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From 74d3a35c573f41861590ee786400067220c300b6 Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:31:18 +0200
|
||||
Subject: [PATCH 10/11] mwlwifi
|
||||
Subject: [PATCH 10/12] mwlwifi
|
||||
|
||||
---
|
||||
drivers/net/wireless/marvell/Kconfig | 1 +
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
From ba5ab6c097f826ef6ec92379383f8b9963b8f48c Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:32:00 +0200
|
||||
Subject: [PATCH 11/11] surface-lte
|
||||
Subject: [PATCH 11/12] surface-lte
|
||||
|
||||
---
|
||||
drivers/usb/serial/qcserial.c | 1 +
|
||||
|
|
|
|||
359
patches/5.1/0012-surfacebook2-dgpu.patch
Normal file
359
patches/5.1/0012-surfacebook2-dgpu.patch
Normal file
|
|
@ -0,0 +1,359 @@
|
|||
From 42b801e957cc7aa47e7d6a869970c149d959b539 Mon Sep 17 00:00:00 2001
|
||||
From: Maximilian Luz <luzmaximilian@gmail.com>
|
||||
Date: Wed, 3 Jul 2019 00:35:24 +0200
|
||||
Subject: [PATCH 12/12] surfacebook2-dgpu
|
||||
|
||||
---
|
||||
drivers/platform/x86/Kconfig | 9 +
|
||||
drivers/platform/x86/Makefile | 1 +
|
||||
drivers/platform/x86/surfacebook2_dgpu_hps.c | 306 +++++++++++++++++++
|
||||
3 files changed, 316 insertions(+)
|
||||
create mode 100644 drivers/platform/x86/surfacebook2_dgpu_hps.c
|
||||
|
||||
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
|
||||
index 21ffc03cd372..200d4d55da98 100644
|
||||
--- a/drivers/platform/x86/Kconfig
|
||||
+++ b/drivers/platform/x86/Kconfig
|
||||
@@ -483,6 +483,15 @@ config SURFACE3_WMI
|
||||
To compile this driver as a module, choose M here: the module will
|
||||
be called surface3-wmi.
|
||||
|
||||
+config SURFACE_BOOK2_DGPU_HPS
|
||||
+ tristate "Surface Book 2 dGPU Hot-Plug System Driver"
|
||||
+ depends on ACPI
|
||||
+ ---help---
|
||||
+ This is an experimetnal driver to control the power-state of the
|
||||
+ Surface Book 2 dGPU.
|
||||
+
|
||||
+ If you have a Surface Book 2, say Y or M here.
|
||||
+
|
||||
config THINKPAD_ACPI
|
||||
tristate "ThinkPad ACPI Laptop Extras"
|
||||
depends on ACPI
|
||||
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
|
||||
index 278ce32df99f..0faf98020b84 100644
|
||||
--- a/drivers/platform/x86/Makefile
|
||||
+++ b/drivers/platform/x86/Makefile
|
||||
@@ -49,6 +49,7 @@ obj-$(CONFIG_ACPI_WMI) += wmi.o
|
||||
obj-$(CONFIG_MSI_WMI) += msi-wmi.o
|
||||
obj-$(CONFIG_PEAQ_WMI) += peaq-wmi.o
|
||||
obj-$(CONFIG_SURFACE3_WMI) += surface3-wmi.o
|
||||
+obj-$(CONFIG_SURFACE_BOOK2_DGPU_HPS) += surfacebook2_dgpu_hps.o
|
||||
obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
|
||||
obj-$(CONFIG_WMI_BMOF) += wmi-bmof.o
|
||||
obj-$(CONFIG_INTEL_WMI_THUNDERBOLT) += intel-wmi-thunderbolt.o
|
||||
diff --git a/drivers/platform/x86/surfacebook2_dgpu_hps.c b/drivers/platform/x86/surfacebook2_dgpu_hps.c
|
||||
new file mode 100644
|
||||
index 000000000000..7639fb0029d8
|
||||
--- /dev/null
|
||||
+++ b/drivers/platform/x86/surfacebook2_dgpu_hps.c
|
||||
@@ -0,0 +1,306 @@
|
||||
+#include <linux/acpi.h>
|
||||
+#include <linux/gpio.h>
|
||||
+#include <linux/kernel.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/moduleparam.h>
|
||||
+#include <linux/platform_device.h>
|
||||
+#include <linux/sysfs.h>
|
||||
+
|
||||
+#include <linux/uaccess.h>
|
||||
+
|
||||
+
|
||||
+#define SB2_SHPS_DSM_REVISION 1
|
||||
+#define SB2_SHPS_DSM_GPU_STATE 0x05
|
||||
+
|
||||
+static const guid_t SB2_SHPS_DSM_UUID =
|
||||
+ GUID_INIT(0x5515a847, 0xed55, 0x4b27, 0x83, 0x52, 0xcd,
|
||||
+ 0x32, 0x0e, 0x10, 0x36, 0x0a);
|
||||
+
|
||||
+#define SB2_PARAM_PERM (S_IRUGO | S_IWUSR)
|
||||
+
|
||||
+
|
||||
+static const struct acpi_gpio_params gpio_base_presence_int = { 0, 0, false };
|
||||
+static const struct acpi_gpio_params gpio_base_presence = { 1, 0, false };
|
||||
+static const struct acpi_gpio_params gpio_dgpu_power_int = { 2, 0, false };
|
||||
+static const struct acpi_gpio_params gpio_dgpu_power = { 3, 0, false };
|
||||
+static const struct acpi_gpio_params gpio_dgpu_presence_int = { 4, 0, false };
|
||||
+static const struct acpi_gpio_params gpio_dgpu_presence = { 5, 0, false };
|
||||
+
|
||||
+static const struct acpi_gpio_mapping sb2_mshw0153_acpi_gpios[] = {
|
||||
+ { "base_presence-int-gpio", &gpio_base_presence_int, 1 },
|
||||
+ { "base_presence-gpio", &gpio_base_presence, 1 },
|
||||
+ { "dgpu_power-int-gpio", &gpio_dgpu_power_int, 1 },
|
||||
+ { "dgpu_power-gpio", &gpio_dgpu_power, 1 },
|
||||
+ { "dgpu_presence-int-gpio", &gpio_dgpu_presence_int, 1 },
|
||||
+ { "dgpu_presence-gpio", &gpio_dgpu_presence, 1 },
|
||||
+ { },
|
||||
+};
|
||||
+
|
||||
+
|
||||
+enum sb2_dgpu_power {
|
||||
+ SB2_DGPU_POWER_OFF = 0,
|
||||
+ SB2_DGPU_POWER_ON = 1,
|
||||
+
|
||||
+ __SB2_DGPU_POWER__START = 0,
|
||||
+ __SB2_DGPU_POWER__END = 1,
|
||||
+};
|
||||
+
|
||||
+enum sb2_param_dgpu_power {
|
||||
+ SB2_PARAM_DGPU_POWER_OFF = SB2_DGPU_POWER_OFF,
|
||||
+ SB2_PARAM_DGPU_POWER_ON = SB2_DGPU_POWER_ON,
|
||||
+ SB2_PARAM_DGPU_POWER_AS_IS = 2,
|
||||
+
|
||||
+ __SB2_PARAM_DGPU_POWER__START = 0,
|
||||
+ __SB2_PARAM_DGPU_POWER__END = 2,
|
||||
+};
|
||||
+
|
||||
+static const char* sb2_dgpu_power_str(enum sb2_dgpu_power power) {
|
||||
+ if (power == SB2_DGPU_POWER_OFF) {
|
||||
+ return "off";
|
||||
+ } else if (power == SB2_DGPU_POWER_ON) {
|
||||
+ return "on";
|
||||
+ } else {
|
||||
+ return "<invalid>";
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+
|
||||
+struct sb2_shps_driver_data {
|
||||
+ struct mutex dgpu_power_lock;
|
||||
+ enum sb2_dgpu_power dgpu_power;
|
||||
+};
|
||||
+
|
||||
+
|
||||
+static int __sb2_shps_dgpu_set_power(struct platform_device *pdev, enum sb2_dgpu_power power)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+ acpi_handle handle = ACPI_HANDLE(&pdev->dev);
|
||||
+ union acpi_object *result;
|
||||
+ union acpi_object param;
|
||||
+
|
||||
+ param.type = ACPI_TYPE_INTEGER;
|
||||
+ param.integer.value = power == SB2_DGPU_POWER_ON;
|
||||
+
|
||||
+ result = acpi_evaluate_dsm_typed(handle, &SB2_SHPS_DSM_UUID, SB2_SHPS_DSM_REVISION,
|
||||
+ SB2_SHPS_DSM_GPU_STATE, ¶m, ACPI_TYPE_BUFFER);
|
||||
+
|
||||
+ if (IS_ERR_OR_NULL(result)) {
|
||||
+ return result ? PTR_ERR(result) : -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ if (result->buffer.length != 1 || result->buffer.pointer[0] != 0) {
|
||||
+ return -EIO;
|
||||
+ }
|
||||
+
|
||||
+ drvdata->dgpu_power = power;
|
||||
+
|
||||
+ printk(KERN_INFO "sb2_shps: dGPU power state set to \'%s\'\n", sb2_dgpu_power_str(power));
|
||||
+
|
||||
+ ACPI_FREE(result);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int sb2_shps_dgpu_set_power(struct platform_device *pdev, enum sb2_dgpu_power power)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+ int status = 0;
|
||||
+
|
||||
+ if (power < __SB2_DGPU_POWER__START || power > __SB2_DGPU_POWER__END) {
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ mutex_lock(&drvdata->dgpu_power_lock);
|
||||
+ if (power != drvdata->dgpu_power) {
|
||||
+ status = __sb2_shps_dgpu_set_power(pdev, power);
|
||||
+ }
|
||||
+ mutex_unlock(&drvdata->dgpu_power_lock);
|
||||
+
|
||||
+ return status;
|
||||
+}
|
||||
+
|
||||
+static int sb2_shps_dgpu_force_power(struct platform_device *pdev, enum sb2_dgpu_power power)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+ int status;
|
||||
+
|
||||
+ if (power < __SB2_DGPU_POWER__START || power > __SB2_DGPU_POWER__END) {
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ mutex_lock(&drvdata->dgpu_power_lock);
|
||||
+ status = __sb2_shps_dgpu_set_power(pdev, power);
|
||||
+ mutex_unlock(&drvdata->dgpu_power_lock);
|
||||
+
|
||||
+ return status;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static int param_dgpu_power_set(const char *val, const struct kernel_param *kp)
|
||||
+{
|
||||
+ int power = SB2_PARAM_DGPU_POWER_OFF;
|
||||
+ int status;
|
||||
+
|
||||
+ status = kstrtoint(val, 0, &power);
|
||||
+ if (status) {
|
||||
+ return status;
|
||||
+ }
|
||||
+
|
||||
+ if (power < __SB2_PARAM_DGPU_POWER__START || power > __SB2_PARAM_DGPU_POWER__END) {
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ return param_set_int(val, kp);
|
||||
+}
|
||||
+
|
||||
+static const struct kernel_param_ops param_dgpu_power_ops = {
|
||||
+ .set = param_dgpu_power_set,
|
||||
+ .get = param_get_int,
|
||||
+};
|
||||
+
|
||||
+static int param_dgpu_power_init = SB2_PARAM_DGPU_POWER_OFF;
|
||||
+static int param_dgpu_power_exit = SB2_PARAM_DGPU_POWER_OFF;
|
||||
+
|
||||
+module_param_cb(dgpu_power_init, ¶m_dgpu_power_ops, ¶m_dgpu_power_init, SB2_PARAM_PERM);
|
||||
+module_param_cb(dgpu_power_exit, ¶m_dgpu_power_ops, ¶m_dgpu_power_exit, SB2_PARAM_PERM);
|
||||
+
|
||||
+MODULE_PARM_DESC(dgpu_power_init, "dGPU power state to be set on init (0: off / 1: on / 2: as-is)");
|
||||
+MODULE_PARM_DESC(dgpu_power_exit, "dGPU power state to be set on exit (0: off / 1: on / 2: as-is)");
|
||||
+
|
||||
+
|
||||
+static ssize_t dgpu_power_show(struct device *dev, struct device_attribute *attr, char *data)
|
||||
+{
|
||||
+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+
|
||||
+ return sprintf(data, "%s\n", sb2_dgpu_power_str(drvdata->dgpu_power));
|
||||
+}
|
||||
+
|
||||
+static ssize_t dgpu_power_store(struct device *dev, struct device_attribute *attr,
|
||||
+ const char *data, size_t count)
|
||||
+{
|
||||
+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
|
||||
+ bool power = false;
|
||||
+ int status;
|
||||
+
|
||||
+ status = kstrtobool(data, &power);
|
||||
+ if (status) {
|
||||
+ return status;
|
||||
+ }
|
||||
+
|
||||
+ if (power) {
|
||||
+ status = sb2_shps_dgpu_set_power(pdev, SB2_DGPU_POWER_ON);
|
||||
+ } else {
|
||||
+ status = sb2_shps_dgpu_set_power(pdev, SB2_DGPU_POWER_OFF);
|
||||
+ }
|
||||
+
|
||||
+ return status < 0 ? status : count;
|
||||
+}
|
||||
+
|
||||
+const static DEVICE_ATTR_RW(dgpu_power);
|
||||
+
|
||||
+
|
||||
+#ifdef CONFIG_PM
|
||||
+
|
||||
+static int sb2_shps_resume(struct device *dev)
|
||||
+{
|
||||
+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+
|
||||
+ return sb2_shps_dgpu_force_power(pdev, drvdata->dgpu_power);
|
||||
+}
|
||||
+
|
||||
+static SIMPLE_DEV_PM_OPS(sb2_shps_pm_ops, NULL, sb2_shps_resume);
|
||||
+
|
||||
+#endif
|
||||
+
|
||||
+
|
||||
+static int sb2_shps_probe(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata;
|
||||
+ struct acpi_device *shps_dev = ACPI_COMPANION(&pdev->dev);
|
||||
+ int status = 0;
|
||||
+
|
||||
+ if (gpiod_count(&pdev->dev, NULL) < 0) {
|
||||
+ return -ENODEV;
|
||||
+ }
|
||||
+
|
||||
+ status = acpi_dev_add_driver_gpios(shps_dev, sb2_mshw0153_acpi_gpios);
|
||||
+ if (status) {
|
||||
+ return status;
|
||||
+ }
|
||||
+
|
||||
+ drvdata = kzalloc(sizeof(struct sb2_shps_driver_data), GFP_KERNEL);
|
||||
+ if (!drvdata) {
|
||||
+ status = -ENOMEM;
|
||||
+ goto err_alloc_drvdata;
|
||||
+ }
|
||||
+
|
||||
+ mutex_init(&drvdata->dgpu_power_lock);
|
||||
+ drvdata->dgpu_power = SB2_DGPU_POWER_OFF;
|
||||
+ platform_set_drvdata(pdev, drvdata);
|
||||
+
|
||||
+ if (param_dgpu_power_init != SB2_PARAM_DGPU_POWER_AS_IS) {
|
||||
+ status = sb2_shps_dgpu_force_power(pdev, param_dgpu_power_init);
|
||||
+ if (status) {
|
||||
+ goto err_set_power;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ status = sysfs_create_file(&pdev->dev.kobj, &dev_attr_dgpu_power.attr);
|
||||
+ if (status) {
|
||||
+ goto err_sysfs;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+err_sysfs:
|
||||
+ sb2_shps_dgpu_force_power(pdev, SB2_DGPU_POWER_OFF);
|
||||
+err_set_power:
|
||||
+ platform_set_drvdata(pdev, NULL);
|
||||
+ kfree(drvdata);
|
||||
+err_alloc_drvdata:
|
||||
+ acpi_dev_remove_driver_gpios(shps_dev);
|
||||
+ return status;
|
||||
+}
|
||||
+
|
||||
+static int sb2_shps_remove(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct sb2_shps_driver_data *drvdata = platform_get_drvdata(pdev);
|
||||
+ struct acpi_device *shps_dev = ACPI_COMPANION(&pdev->dev);
|
||||
+
|
||||
+ sysfs_remove_file(&pdev->dev.kobj, &dev_attr_dgpu_power.attr);
|
||||
+
|
||||
+ if (param_dgpu_power_exit != SB2_PARAM_DGPU_POWER_AS_IS) {
|
||||
+ sb2_shps_dgpu_set_power(pdev, param_dgpu_power_exit);
|
||||
+ }
|
||||
+ acpi_dev_remove_driver_gpios(shps_dev);
|
||||
+
|
||||
+ platform_set_drvdata(pdev, NULL);
|
||||
+ kfree(drvdata);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static const struct acpi_device_id sb2_shps_acpi_match[] = {
|
||||
+ { "MSHW0153", 0 },
|
||||
+ { },
|
||||
+};
|
||||
+MODULE_DEVICE_TABLE(acpi, sb2_shps_acpi_match);
|
||||
+
|
||||
+static struct platform_driver sb2_shps_driver = {
|
||||
+ .probe = sb2_shps_probe,
|
||||
+ .remove = sb2_shps_remove,
|
||||
+ .driver = {
|
||||
+ .name = "sb2_shps",
|
||||
+ .acpi_match_table = ACPI_PTR(sb2_shps_acpi_match),
|
||||
+#ifdef CONFIG_PM
|
||||
+ .pm = &sb2_shps_pm_ops,
|
||||
+#endif
|
||||
+ },
|
||||
+};
|
||||
+module_platform_driver(sb2_shps_driver);
|
||||
+
|
||||
+MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
|
||||
+MODULE_DESCRIPTION("Surface Book 2 Hot-Plug System Driver");
|
||||
+MODULE_LICENSE("GPL v2");
|
||||
--
|
||||
2.22.0
|
||||
|
||||
Loading…
Reference in a new issue